Research Article

Studies on Nano Naturals Dyes obtained from the Flower of Tecomacapensis

M. Kumaresan
Department of Chemistry, Arasu Engineering College, Kumbakonam, Tanjore, India.

J. Environ. Nanotechnol., Volume 10, No.1 (2021) pp. 25-29




In this study, natural colours were produced from the flower of Tecoma capensis. The dyes were extracted from the petal part of the plant using solvent extraction method of acidified methanol. The natural colours were then converted into powder form that is in nano size scale using a ball mill grinder. Cotton fabrics were used as the substrate and dyed using several natural and synthetic mordant. The use of different solvents for extraction and mordant for dyeing resulted in different colour shades on the cotton fabrics. The color fastness to washing tests revealed colour fastness to washing ranging from 4 - 4/5 and the change in color ranging from 2/3 - 3/4. The findings will benefit and promote the dyeing and printing industry.

Full Paper


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